Shelf-life fuelpump 912

RW,

In regard to these parts timelines, do you put an SLSA into the certified category or experimental? I know an SLSA does not require certified parts, but I believe you would need to follow the timelines just like a certified engine.  

Hi Jeff

Since i am still on that ASTM F37 committee, since the beginning, it depends.  The OEM of record is whomever signs the 8130-15, declaration of compliance to the ASTM standards.  As such they have the overall control of what can be done, only the FAA can "trump" them if they feel they must.  

Under the SLSA these are "factory" built to a comply with an accepted set of standards at the time of production.  Each SLSA must have a maintenance manual.  This is the part where most people disagree, the OEM normally will defer all engine maintenance to the engine manufacturer and not write their own requirements.  That said if they have done this then the Rotax manuals for that would apply under the SLSA terms.  There is nothing saying an OEM cant do it, it is simply that almost all do not.  If your OEM did their own 100 hour inspection, including all the engine, then you are obliged to follow that.  If they state follow the Rotax manual for the engine then you must use the Rotax inspection list.  

The SLSA gets a huge break in that they do not require an IA for many things that certified do.  They do not need to use certified parts or assemblies so no Form 1 tags (8030-3)  You are however required to do the same log entries in regards to assemblies and recording work.  parts coming off and being replaced have to be noted.  Serialized parts should be entered to know if they are current.  Normally tracking the part numbers is fine on any parts without serial numbers.  These are FAA repairman requirements for log entry. 

One more item, the OEM should call out the level of training required to to the work in any maintenance they publication.  The maintenance manuals in the very first SLSA aircraft had some with big mistakes.  In some cases they said all work to be carried out by an A&P, so LSRM could not do the work.  Some said LSRM and left out A&P, the FAA was not happy.  This is pretty much a thing of the past now

Cheers